Demo Lab

Lighting Device: White LED

Case 2: LED Wafer Lapping/Polishing Process

In recent years, colorful lights in a variety of wavelengths, ranging from infrared to ultraviolet, have been developed as light emitting diodes (LEDs). Among these, LEDs that emit white light were developed and have been incorporated into various products such as lighting equipment. Here, we’d like to introduce an application process used to lap and polish sapphire wafers for white LEDs.